2-beta,16-beta-diamino-androstanes

ABSTRACT

2B, 16B-DIAMINO-ANDROSTANE COMPOUNDS OXYGENATED IN THE 3- AND 17-POSITIONS, WHEREIN THE AMINO GROUPS MAY BE DIALKYLAMINO AND HETEROCYCLIC AMINO GROUPS, AND THEIR ACID ADDITION SALTS AND QUATERNARY AMMONIUM SALTS, ARE PREPARED BY REACTING A 16A, 17A-OXIDO-, OR A 16-KETO-STEROID WITH AN AMINE AT ELEVATED TEMPERATURE AND PRESSURE, FOLLOWED BY REDUCTION TO THE CORRESPONDING 17B-HYDROXY DERIVATIVE. THE COMPOUNDS OF THE INVENTION ARE HIGHLY ACTIVE NEUROMUSCULAR BLOCKING AGENTS AND HAVE A STRONG INFLUENCE ON THE AUTONOMIC NERVOUS SYSTEM.

United States Patent Int. c1.c07c 173/10 US. Cl. 260-2395 6 Claims ABSTRACT OF THE DISCLOSURE 25,1GB-diamino-androstane compounds oxygenated in the 3- and 17-positions, wherein the amino groups may be dialkylamino and heterocyclic amino groups, and their acid addition salts and quaternary ammonium salts, are prepared by reacting a 16st, 17a-oXido-, or a l6-keto-steroid with an amine at elevated temperature and pressure, followed by reduction to the corresponding 17,8-hydroxy derivative. The compounds of the invention are highly active neuromuscular blocking agents and have a strong influence on the autonomic nervous system.

CROSS-'REFENCES TO RELATED APPLICATION This application is a continuation-in-part of application Ser. No. 528,358, filed Feb. 18, 1966, now abandoned.

BACKGROUND OF THE INVENTION The present invention relates to novel 2,8,16fl-diaminoandrostanes.

More particularly, it relates to novel 2/3,16 5-diamino- 3,17-dioxygenated androstane compounds.

The invention relates more especially to novel 25,161+ diaminoandrostanes of the following formula:

X it

wherein R and R represent hydrogen, an alkyl or aralkyl group having 1-1() carbon atoms, or when taken together form with the nitrogen atom a heterocyclic amino radical,

R and R represent hydrogen, and alkyl or aralkyl group having 110 carbon atoms, or when taken together form with the nitrogen atom a heterocyclic amino radical, and acid-addition or quaternary ammonium salts of these compounds.

NR R and NR R may be the same or different.

Particularly, the quaternary ammonium salts of the above compounds derived from alkyl or substituted alkyl halides of which the alkyl group has 14 carbon atoms, or quaternary ammonium salts of which the anion is OH or NO;,, are very interesting biologically active compounds.

3,553,212 Patented Jan. 5, 1971 The compounds according to the invention may be prepared by reacting a compound of the formula:

CU 6b wherein X=either a 16u,17a-oxido group or a l6-keto group, and R=H or an acyl group,

with an amine of the formula NHR R and/ or NHR R wherein R ,R ,,R and R have the meaning as defined above.

By reaction of a starting product as defined above with an amine of the formula HNR R for a short period, usually varying between /25 hours, the resulting product is mainly the 16fl-amino-l7keto-2a,3ot-oxidosteroid which may be reacted further for a longer period, usually 35 hours5 days, with the same or difierent amine, 25,165- diamino-3,l7-oXygenated-androstanes as defined above are obtained.

The reaction with the amine NHR R or NHR R which may be the same, is carried out at an elevated temperature, usually at to 250 C., if necessary under pressure and in the presence of water.

The resulting 2fi,l6,8 diamino-5wandrostan-3a-ol-17- one compounds may be reduced by means of an alkali metal borohydride, e.g. potassium borohydride, an alkali metal aluminium hydride, e.g. lithum aluminium hydride, sodium triethoxy aluminium hydride, or an alkali metal trialkoxy borohydride, e,g, sodium trimethoxy borohydride, to give the corresponding 17fl-hydroxy derivative.

The 3a-hydroxy group may be esterified before reduction in which case the resulting 17B-hydroxyl group may be esterified with a different acid or both hydroxyl groups may be esterified after reduction with the same acid to give the di-ester of the acid.

By the esterification of the 30:- and/or 17/8-hydroXy1- group there may be prepared the esters derived from an inorganic acid, e.g. phosphoric acid, or an organic carboxylic acid, preferably having 1-18 carbon atoms, such as acetic acid, butyric acid, valeric acid, caproic acid, oenanthic acid, decanoic acid, lauric acid, trimethyl acetic acid, cyclohexyl butyric acid, phenylpropionic acid, malonic acid and succinic acid.

The alkyl group in the alkylaminoor dialkylamino group, present in 2- and l6-positions is preferably a lower alkyl group having 1-6 carbon atoms.

The tertiary amino groups may be further reacted either before or after reduction of the 17-keto group and either before or after esterification of the 3aand/ or the l7 8-hydroxyl groups, with an alkyl halide, e.g. methyl bromide, methyl iodide, ethyl bromide, ethyl iodide to give the bis-quaternary ammonium salts, or with an inorganic or organic acid to give the acid-addition salts, such as hydrochlorides, citrates or pyruvates.

The novel 2,16-diamino-androstanes of the present invention exert a strong influence on the autonomic nervous system, being especially active at the junction of somatic nerves and striated muscle. Their utility is as neuromuscular blocking agents (muscle relaxants) in a manner similar to tubocurarine, although the 2,16-diamino-androstanes do not alfect the cardiovascular system, nor do they release histamine. The 2,l'fi-diamino-androstanes of the invention possess unexpected and unobvious properties of great value in the practice of anaesthesiology. Pharmacological studies in a wide range of species, including man, have shown that the bisquaternary salts of 2,16-diaminoandrostanes exhibit potent non-depolarizing (competitive or curariform) neuromuscular blocking (muscle relaxing) properties, such as to cause profound muscle relaxation after intravenous injection during general surgical anesthesia.

The compounds of the invention are intended for human therapy, particularly by intravenous injection, in initial dosages between about 4 and 12 mg., followed if necessary by incremental dosages of 1 to 2 mg.

Thus, the utility and mode of application of the compounds of the invention is illustrated by the compound 25,165-bis-piperidino a androstane-3a,17fi diol diacetate dimethobromide (also known as Pancuronium bromide), which is described in Examples VII to X below. This compound is applied in man by intravenous injection in dosage of 4-12 mg. followed by incremental doses 12 mg. to cause muscle relaxation without cardiovascular side-effects under general surgical anesthesia. It has been successfully used in over 600 patients undergoing a wide range of surgical procedures from simple laparotomy to complex cadiac by-pass procedures.

The initial clincal pharmacology of Pancuronium bromide has been described by W. L. M. Baird and A. M. Reid, Brit. J. Anaesthesia, 39 775-780 (1967). The pharmacology of this compound in a wide range of animal species was described by W. R. Buckett et al., Brit. J. Pharmacol. 32, 671-682, (March 1968).

A second compound of the class comprised in the present invention, namely 2,8,16,8-bis-piperidinofiat-androstane-3oc,l7fi-diol Ila-acetate dimethorbromide (see Example XVI below), when tested in pentobarbitone anaesthetized baboons of kg. body weight produced profound muscle relaxation in a similar dosage to tubocurarine, namely (0.020.1 mg. per kg.), such relaxation being less than half the duration of tubocurarine. This short duration could be valuable in human anaesthesia, in dosages of 15 to 30 mg. administered intravenously.

A third compound 213,l6/3-bis-piperidino-5a-androstane- 3a,l7fl-diol dibenzoate dimethobromide (see Example XIX below) has been shown in anaesthetized cats to have a longer duration than any heretofore known neuromuscular blocking agent.

In comparison with the known Z-aminoandrostanes and the known l6-aminoandrostanes, the 2,16-diaminoandrostanes of the present invention exhibit unexpected and different modes of action. Thus, the 2-monoamino compound 3a-hydroxy-2fl-morpholino-Sa-androstane 17 one, described as compound V in the article by Hewett et al., J. Pharm. Pharmac. 16, 765-767 (1964), produces loss of righting reflex in mice, such action being due to a mechanism other than neuromuscular blockade.

16-monoamino-androstane bases, for example, 16fi-morpholino-3fl-hydroxy-5wandrostane-l7-one, disclosed by Overbeek and Bonta, in Hormonal Steroids, vol. 1 (1964), shows antistrychnine activity. A quaternary 16-monoamino androstane salt, namely 165 piperidino 5aandrostane-17/8-ol acetate methobromide, produces sedation in mice at nontoxic dose levels and is devoid of neuromuscular blocking activity. This is in great contrast to the potent neuromuscular blocking activity produced by the corresponding 2,16-diamino compound of the invention, viz the compound Pancuronium bromide, described a ove.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The following examples illustrate the invention in greater detail.

Example I..2fl,l6fi-bis-piperidino-5a-andr0 taI1-3 -0 17-one (i) A solution of 2a,3a,l6w,l7a-diepoxy-l7/3-acetoxy- Sa-androstane (25 g.), prepared from 3,17-diacetoxy-5uandrostane-2,16-diene (Chem. Abs. 1960, 54, 8908) by treatment with m-chlor-per-benzoic acid, in piperidine (120 ml.) and water (40 ml.) was boiled under reflux for 5 days, the solution was concentrated and the product precipitated by the addition of Water. The solid was collected, dissolved in dilute hydrochloric acid, filtered to give a clear solution and precipitated by the addition of sodium hydroxide solution. Crystallisation from acetone gave 2B,16B-bis-piperidino-5u-androstan-3a-ol 17 one (18.9), M.P. 179-185 C.

(ii) The diepoxide (1 g.) was treated with alcoholic potassium hydroxide solution and the product crystallized from methanol to give 2a,3a-epoxy-5u-androstan-176-01- l6-one (0.25 g.) which was boiled under reflux with piperidine (10 ml.) and water (1 ml.) for 4 days. The product was worked up in the usual manner and crystallized from acetone to give the same bis-piperidino-androstanolone (0.2 g.).

Example II.2,6,16,8-bis-morpholino-5a-androstan-3 a-ol- 17-one (i) A solution of the diepoxide (2 g.) in mopholine (10 ml.) and water (2 ml.) was boiled under reflux for 48 hours, the solution cooled and the product precipitated by addition of water. The solid was filtered ofl, washed with water, dried and crystallised from acetone to give the bis-morpholine-androstanolone (1 g.), M.P. 214 216" C.

(ii) In a manner similar to Example I (ii), the same bismorpholino-androstanolone was obtained by refluxing 2oz, 3u-epoxy-5a-androstan-17fi-ol-16-one with morpholine.

Example III In a manner similar to Example I (i), bis-(3'-azabicyclo- [3,2,2]-nonano)-androstanolone was prepared by heating the diepoxide, under reflux, with the appropriate amine in iso-amyl alcohol containing water equivalent to 10% by weight of the amino.

Example IV Bis-dimethylamino-, bis-diethylamino bis dipropylamino-, bis-diisopropylaminoand bis-dibutylamino-androstanolone were prepared by heating the di-epoxide with the appropriate amine containing 10% of water in an autoclave at 200250 C. for 48 hours.

Example V.2a,3 rx-epoxy- 1 6B-pyrr0lidino-5a-androstan- 17-one A solution of 20,3a-epoxy-5a-androstan-17p-ol-16-one (20 g.) in pyrrolidine (80 ml.) was boiled under reflux for 2 /2 hours and evaporated to dryness under reduced pressure. The residual gum was extracted with dilute hydrochloric acid, the solution filtered free of insoluble material and the basic fraction precipitated by the addition of 10 N potassium hydroxide solution of the filtrate. The basic material was extracted with ether, the extract washed neutral with water and dried (MgSO The extract was evaporated to dryness, the residue dissolved in n-hexane-benzene 1:1) and precolated down a column (8 x 1" dia.) of alumina. Elution with n-hexane-benzene (1:1) gave 204,3u-epoxy-16,8-pyrrolidino-5tit-androstan-17- one.

In a similar manner the following were prepared:

2a,3 a-epoxy-16B-morpholino-5rat-androstan-17-one 2oc,3 e-epoxy-l 6fi-piperidino-5a-androstan-17-one 204,3 a-epoxy-16p-dimethylamino-5a-androstan-17-one Example VI.2fi-piperidino-16fi-pyrrolidino-5a, androstan-3 oc-Ol-17-On6 A solution of the epoxy-pyrrolidinoandrostanolone (5 g.) from Example V in water (3 ml.) and piperidine (22 ml.) was boiled under reflux for hours. The product was precipitated by the addition of water and extracted with methylene chloride. The extract was well washed with water, dried (MgSO filtered and evaporated to drymess. The residual gum was dissolved in benzene and filtered down a column (8 x 1 dia.) of alumina. 'Elution with benzene:ether mixtures yielded fractions which were crystallized from acetone and then from ether to give Zfl-piperidino-16fl-pyrrolidino-5a-androstan-Ba-ol-17 one in small prisms, MJP. l74180 C.

In a similar manner the following were prepared:

25,16fi-bis-pyrrolidino-5u-androstan-3 oc-Ol-17-OI16 Zfi-piperidino-l6B-morpholino-Sa-androstan-S a-ol-17-one 2fl-piperidino-16B-dimethylamino-5ot-androstan-3 -01-17- one Example VII.2B,l65-bis-piperidino-5a-androstane-3 0c, 17 p-diol A solution of sodium borohydride (8 g.) in water (16 ml.) was added to a stirred solution of 25,16fl-bis-piperidino-a-androstan-3ot-ol-17-one (17 g.) in tetrahydrofuran (70 ml.) and methanol (30 ml.) and the solution stirred at room temperature for 16 hours. The product was precipitated by the addition of water, filtered off, dried, and crystallised from acetone to give the diol (14.9 g.).

In a similar manner the following substances were prepared:

Bis-morpholino-androstanediol Bis-dimethylamino-androstanediol Bis-diethylamino-androstanediol Bis-dipropylamino-androstanediol Bis-di-isopropylamino-androstanediol Bis-dibutylamino-androstanediol Bis-3 '-azabicyclo [3 ,2,2 -nonano-androstanediol Zfl-piperidino-1fl-pyrrolidino-androstanediol 2 8,l6-,B-bis-pyrrolidino-androstanediol 2,8-piperidino-16fi-morpholino-androstanediol Zfi-piperidinol 6 3-dimethylamino-androstanediol The last compound was also prepared by reducing 2u,3 a-epoxy-16B-dimethylamino-See-androstan-l7-one to the l7fi-alcohol with sodium borohydride before condensing with aqueous piperidine.

When crude 2,8,16fi-piperidino-5a-androstan-3a-ol-l7- one containing some 2B,16a-bis-piperidino-5a-androstan- 3u-ol-17-one was reduced with sodium borohydride the product on fractional crystallisation from ether gave 213,l6ot-bis-piperidino-5a-androstane-3a,17a diol, M.P. 245249 C.

Example VIII.2;3,16/3-bis-piperidino-3a, 17B- diacetoxy-S a-androstane A solution of the piperidino-diol (9 g.) from Example III in acetic anhydride (18 ml.) was heated at 90 C. for 1 hour, the solution cooled, excess acetic anhydride destroyed by the careful addition of water, and the resulting solution carefully made alkaline with 2 N caustic soda solution to precipitate a solid product. The solid was dried, extracted with n-hexane and the solution filtered free of insoluble material before percolation down a column (4 x 1" dia.) of alumina. Elution with n-hex ane gave a fraction (4.2 g.) which was crystallised twice from ether to give the diacetate, M.P. l76l80 C.

In a similar manner the following were prepared:

Bis-morph0lino-androstanediol diacetate Bis-dimethylamino-androstanediol diacetate Bis-diethylamino-androstanediol diacetate Bis-dipropylamino-androstanediol diacetate Bis-di-isopropylamino-androstanediol-diacetate Bis-dibutylamino-androstanediol-diacetate Bis-3'-azabicyclo[3',2',2]nonano-androstanediol diacetate 2/3-piperidino-l6fi-pyrrolidino-androstanediol diacetate 23,16fl-bis-pyrrolidino-androstanediol diacetate 2fl-piperidino-16fi-morpholino-androstanediol diacetate ZB-piperidino16fl-dimethylamino-androstanediol diacetate 2B,16a-dipiperidino-androstane-3 OL,17OL-dl01 diacetate Example IX. 2;8,16fl-bis-piperidino-5a-androstane- 30;,17/9-di0l bis-methobromide Bis-pyrrolidino-androstanediol bis-methobromide Bis-dimethylamino-androstanediol bis-methobromide Bis-diethylamino-androstanediol bis-methobromide ZB-piperidino-l6fi-pyrrolidino-androstanediol bismethobromide 2B-piperidino-l6,B-morpholino-androstanediol bis-methobromide 2,8-piperidino-l6fi-dimethylamino-androstanediol bismethobromide Bis-morpholino-androstanediol bis-methiodide 2,8, l6a-bis-piperidino-androstane-3 oz, 1 7a-dl0l bromide bis-metho- Example X.25, 16-;3-bis-piperidino-3 a, l 7fi-diacetoxy- Sa-andrOStane-bis-methobromide Methyl bromide (17 g.) was added to a solution of the bis-piperidinodiacetate (4 g.) in methylene chloride (10 ml.) and the resulting solution allowed to stand at room temperature for 4 days. The solution was evaporated to dryness, the residue triturated with ether, and filtered to give the bis-methobromide (5.2 g.), M.P. 206 C. Recrystallisation from acetone-methylene chloride gave material M.P. 2l4-2l7 C.

By using methyl iodide in place of methyl bromide the corresponding rnetho-iodide was obtained.

By using ethyl iodide in place of methyl bromide the corresponding etho-iodide was obtained.

In a similar manner the following were prepared:

Bis-pyrrolidino-andr0stanedi0l diacetate bis-methobromide Bis-dimethylamino-androstanediol diacetate bis-methobromide Bis-diethylamino-androstanediol diacetate bis-methobromide Zfl-piperidino-16B-pyrrolidino-androstanediol diacetate bis-methobromide 2 3-piperidino-16fi1morph0lino-androstanediol diacetate bis-methobromide Zfl-piperidino-lGB-dimethylamino-androstanediol diacetate bis-methobromide Bis-morpholino-androstanediol diacetate bis-methiodide 2p,16wbisi eridino-androstane-3a,Not-diol diacetate bis-methobromide Example XI Bis-morpholino-androstanediol diacetate (l g.) in methyl iodide (5 ml.) was allowed to stand for 2 days and the excess methyl iodide distilled off. The residue was triturated with ether and the solid crystallised from acetone to give the bis-morpholino-androstanediol diacetate bis-meth-iodide.

In a similar manner the bis-etho-iodide was prepared from ethyl iodide.

Example XII Bis-piperidino-androstane-diol diacetate (l g.) and pchlor-benzyl chloride (5 g.) were heated together for 8 hours, cooled and diluted with ether. Bis piperidinoandrostanediol diacetate bis-p.chlor-benzylo chloride was precipitated and purified by crystallisation from acetone.

In a similar manner the bis-dibenzylo chloride was obtained using benzyl chloride.

Example XIII Bis-piperidino androstanediol diacetate bis methobromide (or iodide) was dissolved in water and a solution of silver nitrate added until all the halogen had been replaced by nitrate. The silver halide was filtered off, the solution evaporated under reduced pressure and the residue extracted with acetone. Concentration of the acetone gave bis-piperidino-androstane diol diacetate bismetho nitrate.

Example XIV Bis-piperidino-androstanediol diacetate bis-metho-bromide (2 g.) in Water (20 ml.) was percolated down a column of anion exchange resin (Amberlite C6. 400 C1; 20 g.). The thus treated solution was evaporated to dryness under reduced pressure and the residue crystallised from acetone to give bis-piperidino-androstanediol diacetate bis-metho chloride.

Example XV A solution of bis-piperidino-androstanediol diacetate bis-metho-bromide (2 g.) in water (20 ml.) was shaken with freshly prepared silver hydroxide until the solution was free from bromide ion. The solution was then filtered and evaporated to dryness under reduced pressure to give bis-piperidino-androstanediol diacetate bis-metho hydroxide.

Example XVI Bis-piperidino-androstanolone (5 g.) was heated with acetic anhydride ml.) at 90 C. for 30 minutes, cooled and excess acetic anhydride decomposed by carefiul addition of water. The resulting 3-acetate was isolated by carefully basifying the solution with 2 N caustic soda solution.

A better product 'was obtained by carrying out this re action in a solution of methylene chloride ml.) at about C. for 30 minutes decomposing the excess anhydride with water and carefully basifying with 2 N caustic soda solution. After drying the methylene chloride solution (Na SO and evaporating to dryness the residue was crystallised from acetone to give bis-piperidinoandrostanolone acetate (5.1 gm.) which was reduced with sodium 'borohydride in a manner similar to that described in Example VII to give bis-piperidino-androstane-diol-Iaacetate.

Esterification of this mono acetate with propionic anhydride at 90 C. for /2 hour yielded bis-piperidinoandrostane-diol 3-acetate-17-propionate.

In a similar manner Zfl-piperidino 16/3 pyrrolidinoandrostane-3a,17B-diol B-acetate and 3-acetate-17-propionate were prepared.

In a similar manner the following were prepared:

2B,16B-bis-pyrrolidino-5a-androstan-3a-ol-17-one acetate 2B,16/3-bis-morpholino-5u-androstan-3a-ol-17-one acetate 2e,16fi-dimethylamino-5a-androstan-3a-ol-17-one acetate Zfl-piperidino-16li-morpholino-5a-androstan-3a-ol-17- one acetate ZB-piperidino-l6fl-dimethylamino-5a-androstan-3 u-ol-17- one acetate 2,8,16B-bis-pyrrolidino-5a-androstane-3 a,17,B-diol 3-acetate 2,8,16f!-bis-morpholino-Sa-androstane-3u,l7,8-diol 3-acetate 2 3,16fl-bis-dimethylamino-5u-androstane-3a,17,6-dio1 3-acetate 2,8-piperidino-16f3-morpholino-5a-androstane-3a,17B-diol 3-acetate 218,16 3-bis-pyrr0lidino-5a-androstane-3u,17,B-di0l 3-acetate 17-propionate 25,166-bis-morpholino-5u-androstane-30:,17fi-di0l 3-acetate 17-propionate 2e,16fl-bis-dimethylamino-5u-androstane-3 a, 1 7,6-diol 3-acetate l7-propionate 2 3-piperidino-16fl-morpholino-5a-androstane-3a,17/3- diol 3-acetate 17 propionate Zfl-piperidino-1GQ-dimethylamino-Sa-androstane-3a,17B-

diol-3-acetate 17-propionate Example XVII Bis-piperidino androstanolone-3 acetate (2 g.) was reacted with methyl bromide (10 ml.) in methylene chloride (7.5 ml.) for 5 days. Evaporation of the solution and trituration with ether gave bis-piperidino-androstanolone-3-acetate bis-methobromide.

By using methyl iodide in place of the methyl bromide the corresponding bis-metho-iodide was obtained.

In a similar manner the bis-methobromides and the hismethiodides of the following were prepared:

Example XV III.2B, 16B-bis-piperidino-5a-androstane- 3u,17fl-diol dipropionate A solution of the diol (2 gm. Ex. VII) was treated with propionic anhydride at C. for 1 hour and the product worked up in the usual manner before crystallising from acetone to give the dipropionate as a crystalline solid (660 mg).

In a similar manner the following were prepared:

Bis-rnorpholino-androstanediol dipropionate Bis-dimethylamino-androstanediol dipropionate Bis-diethylamino-androstanediol dipropionate Bis-dipropylamino-androstanediol dipropionate Bis-di-isopropylamino-androstanediol dipropionate Bis-dibutylamino-androstanediol-dipropionate Bis-3'-azabicyclo[3',3',2]nonano-androstanediol dipropionate Zfl-piperidino-16p-pyrrolidino-androstanediol dipropionate 2B,16,8 bis-pyrrolidino-androstanediol dipropionate 25-piperidino-16/5-morpholino-androstanediol dipropionate Zfl-piperidino-1613-dimethylamino-androstanediol dipropionate 2 3,16a-bis-piperidino-androstane-3a,17u-diol dipropionate Example XIX-2,8,16B-bis-piperidino-5a-androstane- 3a,l7,8-diol dibenzoate Benzoyl chloride (6 ml.) was added to a solution of the diol (6 g.) in methylene chloride (24 ml.) and the solution allowed to stand at room temperature overnight. The solution was washed with water and extracted with excess sodium bicarbonate solution, washed with water and dried (Na SO Evaporation to dryness yielded a gum which was triturated with ether to give the dibenzoate as a crystalline solid (5 g.) M.P. -175 C.

In a similar manner the following were prepared:

Bis-morpholino-androstanediol dibenzoate Bisdimethylaanino-androstanediol dibenzoate Bis-diethylamino-androstanediol dibenzoate Bis-dipropylamino-androstanediol dibenzoate Bis-di-isopropylamino-androstanediol dibenzoate Bis-dibutylamino-androstanediol dibenzoate Bis-3'azabicyclo[3',2',2']nonano-androstanediol dibenzoate ZB-piperidino-16,8-pyrrolidino-androstanediol dibenzoate 26,16(3-bis-pyrrolidino-androstanediol dibenzoate Zfl-piperidino-16t3-morpholino-androstanediol dibenzoate 2,8-piperidino-16,B-dimethylamino-androstanediol dibenzoate 25,16a-bis-piperidino-androstane-3a,l7ot-diol dibenzoate Example XX.2/3,16,8-bis-piperidino-Sa-androstane- 3oz,l7l9-di01 bis-phenylacetate Treatment of the diperidino-diol with phenylacetyl chloride in methylene chloride solution gave the bisphenylacetate.

In a similar manner the following were prepared:

Bis-morpholino-androstanediol bis-phenylacetate Bis-dimethylamino-androstanediol bis-phenylacetate Bis-diethylamino-androstanediol bis-phenylacetate Bis-dipropylamino-androstanediol bis-phenylacetate Bis-di-isopropylamino-androstanediol bis-phenylacetate Bis-dibutylamino-androstanediol bis-phenylacetate Bis-3 -azabicyclo 3,2',2 nonano-androstanediol bisphenylacetate 2e-piperidino-16fl-pyrrolidino-androstanediol bisphenylacetate 25,16B-bis-pyrrolidino-androstanediol bis-phenylacetate 2,8-piperidino-16fl-morpholino-androstanediol bis phenylacetate 2fl-piperidino-l6fiI-dimethylamino-androstanediol bisphenylacetate 2B, 1 6u-bis-piperidino-androstane-3 a, l 7u-diol bisphenylacetate Example XXI.2[3,l6 3-bis-piperidino-5a-androstane- 30,17B-Cli01 3-benzoate The 25,165-bis-piperidino 50c androstan 3oc-Ol-l7- one (20 g.) was treated with benzoyl chloride (12 ml.) in pyridine solution at 7 for 2 hours. The product was extracted with ether and worked up in the usual manner to give the 3-benzoate (23.8 g.). Reduction with sodium borohydride in ethanol solution and crystallisation from methylene chloride and acetone yielded the 3a-benzoate of the 3u,17fi-diol (12.6 g.).

In a similar manner the following were prepared:

Example XXII.--2,B,16fl-bis-piperidino-a-androstan- 3a-ol-17-one propionate A solution of bis-piperidino-androstanolone (5 g.) in methylene chloride ml.) was treated with propionic 10 anhydride (10 ml.) at about C. for minutes. Water was added and the methylene chloride solution washed with water, 2 N caustic soda solution, water and dried (Na SO Evaporation to dryness and crystallisation of the residual gum gave the 3-propionate.

In a similar manner the following were prepared:

Bis-morpholino-androstanolone propionate Bis-pyrrolidino-androstanolone propionate Bis-dimethylamino-androstanolone propionate Zfi-piperidinol 6,8-pyrrolidino-androstanolone pro pionate 2fi-piperidino-16,6-dimethylamino-androstanolone propionate Example XXlIL-ZB,16,8-bis-piperidino-5rx-androstane- 3a,l7fl-diol 3-propionate l7-acetate Sodium borohydride (2.5 g.) was added portionwise to a solution of bis-piperidino-androstanolone propionate (4 g.) in methylene chloride (10 ml.) and methanol (10 ml.). Water was added to the solution and the product extracted with methylene chloride; the extract was washed with water, dried (Na SO and evaporated to dryness. The residue was crystallised from ether-methanol to give 2,8,16fl-bis-piperidino-Sa-andrOstane3a,175-diol 3-propionate.

Acetylation in the usual manner gave the 3-propionate l7-acetate.

In a similar manner the following were prepared:

Bis-morpholino-androstanediol 3-propionate 17-acetate Bis-pyrrolidino-androstanediol 3-propionate 17-acetate Bis-dimethylamino-androstanediol 3-propionate l7- acetate 2fl-piperidino-16fl-pyrrolidino-androstanediol 3-pr0pionate 17-acetate 2/3-piperidino-16(3-dimethylamino-androstanediOl 3-propionate 17-acetate Example XXIV.2B,l65-bis-piperidino-Sa-andmstanc- 30;,1713-di0l 17-acetate Excess hydrochloric acid gas was bubbled through a solution of 25,16B-bis-piperidino-5a-androstan-304-01-17- one (10 g.) in benzene (100 ml.). The supernatant benzene solution was decanted and the residual gum triturated with ether to give a solid which was filtered off and washed with ether. This solid was suspended in ethyl vinyl ether (100 ml.) and p-toluene sulphonic acid (20 mg.) added portionwise over 15 min. to the stirred suspension. The suspension was stirred for 3 days before adding solid potassium carbonate and then excess 10% potassium carbonate solution. The ethyl vinyl ether layer was washed with the carbonate solution which was separated off and extracted with benzene. The ether and benzene solutions were combined and washed neutral with water and dried (Na SO The solution was evaporated to dryness to give an orange oil which Was dissolved in benzene and percolated down a column (6 x 1" dia.) of alumina. Elution with benzene and evaporation of the solvent gave a fraction containing only-3a-(1'-ethoxyethyl) ethers (11 g.).

The mixture of the 3-ethoxyethyl ethers (11 g.) was dissolved in methanol 9 100 ml.) containing sodium borohydride (200 mg.). A further quantity (2.8 g.) of borohydride was added carefully over the next 30 min. and stirring continued/continued for another 30 min. The precipitated crystalline 2,3,16 8-bis-piperidino-5ot-androstane-3a,17,8-diol 3-ethoxyethyl ethers (4 g.) were dissolved in pyridine (6 ml.), acetic anhydride (6 ml.) added and the solution kept at room temperature overnight. Water was added and the solution brought to approximately pH 9 by addition of saturated potassium bicarbonate solution. The solution was immediately extracted with ether, the extract washed with water and dried (Na- Evaporation of the ether solution gave a colourless gum (1.9 g.) which was dissolved in methanol (10 ml.) and cone. hydrochloric acid (1 ml.) added.

Bis-morpholino-androstanediol 17-acetate Bis-dimethylarnino-androstanediol 17-acetate Bis-diethylamino-androstanediol 17-acetate Bis-dipropylamino-androstanediol 17-acetate Bis-di-isopropylamino-androstanediol 17-acetate. Bis-dibutylamino-androstanediol 17-acetate Bis-3'-azabicyclo [3 ',Z',2' nonano-androstanediol 17- acetate 2fi-piperidino-1GB-pyrrolidino-androstanediol l7-acetate 23,16B-bis-pyrrolidino-androstanediol 17-acetate 2,8-piperidino-16 3-morpholino-androstanediol 17-acetate Zfi-piperidino-165-dimethylamino-androstanediol 17- acetate Example XXV.2(3,l6B-bis-piperidino-5nt-androstan-3ato1-17-one bis-methobromide Methyl bromide (10 g.) was added to a solution of the bis-piperidino-ketol g.) in methylene chloride (15 ml.) and the solution kept at room temperature in a sealed container for days. The solution was evaporated to dryness, the residual gum dissolved in acetone and ether added to this solution to precipitate the bis-methobromide (6 g.).

In a similar manner the following were prepared:

2fi,16fi-bis-pyrrolidino-5u-androstan-3 oc-Ol-17-One-bismethobromide 2 3,16fi-bis-dimethylamino-5a-androstan-3 a-ol-17-one bis-methobromide 2,8-piperidinol 6fi-dimethylamino-Swandrostan-3 a-ol-17- one bis-methobromide 25,16B-bis-morpholino-5a-androstan-3 04-01-17-01 bismethiodide ZB-piperidino-16,8-rnorpholino-5aandrostan-3 a-ol-17-one bis-methiodide Example XXV I.2B,l6p-bis-piperidino-5 u-androstane- 3a,17fl-diol dibenzoate bis-methobromide.

A solution of the dibenzoate (4 g.) and methyl bromide (24 g.) in methylene chloride (30 ml.) was maintained at 50 C. in an autoclave for 16 hr. The solution was evaporated to dryness, the residue extracted with water and filtered free of insoluble material. The water solution was evaporated to dryness under reduced pressure and then residual water removed by azeotropic distillation with benzene. Crystallisation from acetone gave the corresponding bis-methobromide (2 g.).

In a similar manner the following were prepared:

Bis-dimethylamino-androstanediol dibenzoate bismethobromide Bis-diethylamino-androstanediol dibenzoate bis-methobromide Zfl-piperidino-l6fl-pyrrolidino-androstanediol dibenzoate bis-methobromide 25,16B-bis-pyrrolidino-androstanediol dibenzoate bismethobromide Zfl-piperidino-16B-m0rpholino-androstanediol dibenzoate bis-methobromide Zfl-piperidino-16p-dimethylamino-androstanediol dibenzoate bis-methobromide 25,16a-bis-piperidino-androstane-3 a, 17wdl01 dibenzoate bis-methobromide Bis-dimethylamino-androstanediolabis-phenylacetate bismethobromide Bis-diethylamino-androstanediol-bis-phenylacetate bismethobromide Zfi-piperidino-l6fi-pyrrolidino-androstanediol bis-phenylacetate bis-methobromide 25,16/3-bis-pyrrolidino-androstanediol bis-phenylacetate bis-methobromide 2 8piperidino-16 8-morpholino-androstanediol bis-phenylacetate bis-methobromide 2,8-piperidino-16fi-dimethylamino-androstanediol bisphenylacetate bis-methobromide 2,8,16u-bis-piperidino-androstane-3 oz,17a-di0l bis-phenylacetate bis-methobromide Example XXVII.26,16B-bis-piperidino-5a-androstane- 30:,17B-di0l 3-acetate 17-propionate bis-methobromide A solution of the bis-piperidino-5wandrostane-diol acetate propionate (5.8 g.) and methyl bromide (7 g.) in methylene chloride (20 ml.) was kept at room temperature for 4 days. The solution was evaporated to dryness and the residue crystallised from methylene chloride: acetone to give the bis-methobromide (14 g.).

In a similar manner the following were prepared:

Bis-dimethylamino-androstanediol S-acetate 17-propionate bis-methobromide Bis-diethylamino-androstanediol 3-acetate 17-propionate bis-methobromide Bis-dipropylamino-androstanediol S-acetate 17-propionate bis-methobromide Bis-di-isopropylamino-androstanediol 3-acetate 17- propionate bis-methobromide Bis-dibutylamino-androstanediol 3-acetate 17-propionate bis-methobromide Bis-3'-azabicyclo[3',2,2']nonano-androstanediol 3-acetate 17-propionate bis-methobromide ZB-piperidino-l6fl-pyrrolidino-androstanediol 3-acetate 17-propionate bis-methobromide 2B,165-his-pyrrolidino-androstanediol 3-acetate 17- propionate bis-methobromide 2,8-piperidino-1Gfl-dimethylamino-androstanediol 3-acetate 17-propionate bis'methobromide Bis-dimethylamino-androstanediol 3-p-ropionate 17-acetate bis-methobromide Bis-diethylamino-androstanediol 3-propionate 17-acetate bis-methobromide Bis-dipropylamino-androstanediol 3-prop-ionate l7-acetate bis-methobromide Bis-di-isopropylamino-androstanediol 3-propionate 17- acetate bis-methobromide Bis-dibutylamino-androstanediol 3-propionate 17-acetate bis-methobromide Bis-3'-azabicyclo[3',2',2]nonano-androstanediol 3-propionate 17-acetate bis-methobromide 2fi-piperidino-16,B-pyrrolidino-androstanediol 3-propionate 17-acetate bis-methobromide Zfl,1GB-bis-pyrrolidino-androstanediol 3-propionate 17- acetate bis-methobromide 2fl-piperidino-l6Bdimethylamino-androstanediol 3-propionate 17-acetate bis-methobromide Bis-dimethylamino-androstanediol 17-acetate bismethobromide Bis-diethylamino-androstanediol 17-acetate bis-methobromide Bis-dipropylamino-androstanediol 17-acetate bis-methobromide Bis-di-isopropylamino-androstanediol 17-acetate bismethobromide Bis-dibutylamino-androstanediol 17-acetate bis-methobromide Bis-3 '-azabieyclo [3 ,2,2' nonano-androstanediol 17- acetate bis-methobromide Z/R-piperidino-l 6/3-pyrrolidino androstanediol 17-acetate bis-methobromide 25,165-his-pyrrolidino-androstanedio1 l7-acetate bismethobromide 2fl-piperidino-l6B-dimethylamino-androstanediol 17- acetate bis-methobromide Bis-morpholino-androstanediol 17-acetate bis-methiodide We claim:

1. 25,16fl-diamino-androstane compounds having as only other substituents ing3a-position a substituent selected from the group consisting of hydroxyl and acyloxy, and in 17-position a substituent selected from the group consisting of keto, fi-hydroxyl and S-acyloxy, wherein the acyloxy groups are derived from an acid selected from the group consisting of an inorganic acid and an organic carboxylic acid having 1 to 18 carbon atoms, and salts of these compounds which salts are selected from the group consisting of acid-addition salts and quaternary ammonium salts.

2. Novel diamino-androstanes of the formula:

wherein X is selected from the group consisting of hydrogen and an acyl radical, derived from an acid selected from the group consisting of an inorganic acid and an organic carboxylic acid having 1 to 18 carbon atoms; Y is selected from the group consisting of O, H (BOH) and H (fiOAcyl), wherein the acyl group is derived from an acid selected from the group consisting of an inorganic acid and an organic carboxylic acid having 1 to 18 carbon atoms; R R R and R are selected from the group consisting of hydrogen and an alkyl group having 1 to 6 carbon atoms, and salts of the above compounds selected from the group consisting of acid-addition salts and quaternary ammonium salts. 3. Novel diamino-androstanes of the formula:

wherein X is selected from the group consisting of hydrogen and an acyl radical, derived from an acid selected from the group consisting of an inorganic acid and an organic carboxylic acid having 1 to 18 carbon atoms; Y is selected from the group consisting of O, H(/8OH) and H(fiOAcyl), wherein the acyl group is derived from an acid selected from an inorganic acid and an organic carboxylic acid having 1 to 18 carbon atoms; P and Q are heterocyclic rings derived from a five-, sixand sevenmembered heterocyclic compound containing an NH- radical.

4. Novel quaternary ammonium compounds of the formula:

wherein References Cited Hewett et al.: J. Pharm. Pharmacol 1964, 16 pp. 765- 767.

HENRY A. FRENCH, Primary Examiner U.S. Cl. X.R. 

